George Soros’ ex-girlfriend flew into a rage and hit the billionaire before slapping Hollywood lawyer-to-the-stars Marty Singer in the face, knocking off his glasses, during a heated hearing in her $50 million lawsuit against the mogul.

Court papers filed by Singer say Brazilian actress Adriana Ferreyr, who dated Soros for five years until 2011 and is suing him for allegedly reneging on a promise to buy her a $1.9 million apartment, screamed “f - - king a - - hole” at the mogul then lunged at the lawyers during Soros’ deposition at her attorney’s office.

The papers filed Friday include an account by Singer — who also reps Sly Stallone and Arnold Schwarzenegger — that Ferreyr “suddenly and without warning . . . lunged at Mr. Soros, who is 83-years-old, and struck his head with her hands, knocking off the headphones he was wearing to amplify the audio . . . Ms. Ferreyr pulled back her arm to strike Mr. Soros in the face. I was able to grab both of Ms. Ferreyr’s arms to move her away from Mr. Soros.”

Singer continued, “I let go of her arms. Ms. Ferreyr immediately swung at my face, knocking off my glasses. She then moved toward my glasses that had landed on the floor as if she were going to jump on them . . . I again grabbed her arms and moved her away from my glasses. After I let go of her arms, she resumed swinging at me and attempted to kick me.” Soros aide Jose Santos stepped in, and “Ferreyr slapped Mr. Santos across the face and kicked him in the shins.”

Ferreyr, who’s suing for “intentional infliction of emotional distress,” had arrived with a cameraman and flipped out when told he could not film Soros’ depositon. Although her lawyer Bill Beslow tried to calm her, she screamed at Soros ‘You piece of s - - t!” Singer wrote. And to Soros’ attorney William D. Zabel, who brought in Singer as co-counsel,“You should go to prison and get beat up and f - - ked in your f - - king a - -.”

Zabel said Friday night, “Ms. Ferreyr needs medical help, and I hope she gets it.” Beslow added, “At the appropriate time, Ms. Ferreyr will set forth the complete story of what transpired.”